<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

const animationDuration = 3000

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')

      this.chart.setOption({
         title: {
                 text: '漏斗图',
                 subtext: '纯属虚构'
             },
             tooltip: {
                 trigger: 'item',
                 formatter: "{a} <br/>{b} : {c}%"
             },
             toolbox: {
                 feature: {
                     dataView: {readOnly: false},
                     restore: {},
                     saveAsImage: {}
                 }
             },
             legend: {
                 data: ['展现','点击','访问','咨询','订单'],
                 top: 'bottom'
             },

             series: [
                 {
                     name:'漏斗图',
                     type:'funnel',
                     left: '10%',
                     top: 60,
                     //x2: 80,
                     bottom: 60,
                     width: '80%',
                     // height: {totalHeight} - y - y2,
                     min: 0,
                     max: 100,
                     minSize: '0%',
                     maxSize: '100%',
                     sort: 'descending',
                     gap: 2,
                     label: {
                         show: true,
                         position: 'inside'
                     },
                     labelLine: {
                         length: 10,
                         lineStyle: {
                             width: 1,
                             type: 'solid'
                         }
                     },
                     itemStyle: {
                         borderColor: '#fff',
                         borderWidth: 1
                     },
                     emphasis: {
                         label: {
                             fontSize: 20
                         }
                     },
                     data: [
                         {value: 60, name: '访问'},
                         {value: 40, name: '咨询'},
                         {value: 20, name: '订单'},
                         {value: 80, name: '点击'},
                         {value: 100, name: '展现'}
                     ]
                 }
             ]
      })
    }
  }
}
</script>
